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GB1299063A - Improvements relating to turbomachinery blade spacers - Google Patents

Improvements relating to turbomachinery blade spacers

Info

Publication number
GB1299063A
GB1299063A GB2186/70A GB218670A GB1299063A GB 1299063 A GB1299063 A GB 1299063A GB 2186/70 A GB2186/70 A GB 2186/70A GB 218670 A GB218670 A GB 218670A GB 1299063 A GB1299063 A GB 1299063A
Authority
GB
United Kingdom
Prior art keywords
root
blade
slot
spacer
jan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2186/70A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1299063A publication Critical patent/GB1299063A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1299063 Turbomachine rotor blade fixing GENERAL ELECTRIC CO 16 Jan 1970 [23 Jan 1969] 2186/70 Heading F1T A ducted fan blade 14 has a root 22 mounted in an axial slot in the periphery of the rotor 12 and a resilient non-metallic spacer member 46 disposed in the gap between the base 34 of the root and the base 36 of the slot so as to urge the root radially outwards into tight engagement with the walls of the slot. The spacer 46 is made from a polyurethane compound which may be coated with p.t.f.e. to reduce friction during insertion and has an interior space 50 to receive an assembly tool and a lip 58 for location purposes. Adjacent blades 14 have inter-engaging bracing members 24 and removal of a spacer 46 permits a blade to be moved radially inwards so that the bracing members 24 can be disengaged and the blade removed. The blades 14 are retained axially by hub members 38, 40.
GB2186/70A 1969-01-23 1970-01-16 Improvements relating to turbomachinery blade spacers Expired GB1299063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79332269A 1969-01-23 1969-01-23

Publications (1)

Publication Number Publication Date
GB1299063A true GB1299063A (en) 1972-12-06

Family

ID=25159643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2186/70A Expired GB1299063A (en) 1969-01-23 1970-01-16 Improvements relating to turbomachinery blade spacers

Country Status (6)

Country Link
US (1) US3572970A (en)
JP (1) JPS4836201B1 (en)
BE (1) BE744592A (en)
DE (1) DE2002465A1 (en)
FR (1) FR2029000A1 (en)
GB (1) GB1299063A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139295A (en) * 1983-05-05 1984-11-07 Tuomo Kaivola Thermal joint e.g. for a turbine
CN110397625A (en) * 2019-08-15 2019-11-01 上海电气燃气轮机有限公司 A New Blade Locking Device

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1318654A (en) * 1970-12-05 1973-05-31 Secr Defence Bladed rotors
US3795462A (en) * 1971-08-09 1974-03-05 Westinghouse Electric Corp Vibration dampening for long twisted turbine blades
BE794573A (en) * 1972-02-02 1973-05-16 Gen Electric AUBES FIXING DEVICE
US3832092A (en) * 1973-10-19 1974-08-27 Gen Electric Device for locking turbomachinery blades
US4022545A (en) * 1974-09-11 1977-05-10 Avco Corporation Rooted aerodynamic blade and elastic roll pin damper construction
US3936234A (en) * 1975-02-10 1976-02-03 General Electric Company Device for locking turbomachinery blades
US4208170A (en) * 1978-05-18 1980-06-17 General Electric Company Blade retainer
US4265595A (en) * 1979-01-02 1981-05-05 General Electric Company Turbomachinery blade retaining assembly
US4500255A (en) * 1981-04-24 1985-02-19 United States Of America As Represented By The Secretary Of The Air Force Spacer structure
US4453890A (en) * 1981-06-18 1984-06-12 General Electric Company Blading system for a gas turbine engine
US4483661A (en) * 1983-05-02 1984-11-20 General Electric Company Blade assembly for a turbomachine
US4798519A (en) * 1987-08-24 1989-01-17 United Technologies Corporation Compressor part span shroud
US4836749A (en) * 1988-02-19 1989-06-06 Westinghouse Electric Corp. Pre-load device for a turbomachine rotor
US5022825A (en) * 1988-10-07 1991-06-11 United Technologies Corporation Pitch retention member
US5022824A (en) * 1988-10-07 1991-06-11 United Technologies Corporation Pinned airfoil propeller blade
US5102300A (en) * 1988-10-07 1992-04-07 United Technologies Corporation Pinned airfoil propeller assembly
US5018943A (en) * 1989-04-17 1991-05-28 General Electric Company Boltless balance weight for turbine rotors
US5236309A (en) * 1991-04-29 1993-08-17 Westinghouse Electric Corp. Turbine blade assembly
FR2687734B1 (en) * 1992-02-26 1994-08-26 Snecma FLAME-HANGING DEVICE WITH VARIABLE GEOMETRY FOR USE IN THE POST-COMBUSTION DEVICE OF A TURBOMACHINE.
US5558500A (en) * 1994-06-07 1996-09-24 Alliedsignal Inc. Elastomeric seal for axial dovetail rotor blades
FR2746456B1 (en) * 1996-03-21 1998-04-30 Snecma DEVICE FOR RETAINING THE FOOT OF THE BLADES OF A BLOWER
US6872053B2 (en) * 1997-05-05 2005-03-29 King Of Fans Quick install blade arms for ceiling fans
FR2807096B1 (en) * 2000-03-30 2002-05-31 Abb Alstom Power Nv ROTOR DISC OF TURBINE EQUIPPED WITH FINS ON FOOT AND TREE OF MOUNTING A FIN ON A DISC
US6481971B1 (en) * 2000-11-27 2002-11-19 General Electric Company Blade spacer
US6634863B1 (en) * 2000-11-27 2003-10-21 General Electric Company Circular arc multi-bore fan disk assembly
US7156621B2 (en) * 2004-05-14 2007-01-02 Pratt & Whitney Canada Corp. Blade fixing relief mismatch
US7252481B2 (en) * 2004-05-14 2007-08-07 Pratt & Whitney Canada Corp. Natural frequency tuning of gas turbine engine blades
FR2881174B1 (en) * 2005-01-27 2010-08-20 Snecma Moteurs DEVICE FOR POSITIONING A DASHBOARD AND AUBAGE DISK COMPRISING SUCH A DEVICE
JP2010535968A (en) * 2007-08-08 2010-11-25 アルストム テクノロジー リミテッド Turbine rotor mechanism
US8186961B2 (en) * 2009-01-23 2012-05-29 Pratt & Whitney Canada Corp. Blade preloading system
EP2386721A1 (en) * 2010-05-14 2011-11-16 Siemens Aktiengesellschaft Fastening assembly for blades of axial fluid flow turbo machines and procedure for producing the same
US8851854B2 (en) 2011-12-16 2014-10-07 United Technologies Corporation Energy absorbent fan blade spacer
US9103221B2 (en) 2012-02-16 2015-08-11 Alstom Technology Ltd System and method for blade retention
US9347325B2 (en) * 2012-10-31 2016-05-24 Solar Turbines Incorporated Damper for a turbine rotor assembly
US9863412B2 (en) 2012-11-28 2018-01-09 Gast Manufacturing, Inc. Rocking piston compressor with sound dissipation
WO2014105104A1 (en) * 2012-12-27 2014-07-03 United Technologies Corporation Blade underroot spacer with hook removal
US20140199172A1 (en) * 2013-01-11 2014-07-17 General Electric Company Turbomachine and method of handling turbomachine components
WO2014113009A1 (en) 2013-01-17 2014-07-24 United Technologies Corporation Rotor blade root spacer with grip element
EP2767678A1 (en) * 2013-02-19 2014-08-20 Siemens Aktiengesellschaft Bucket wheel and method for fabricating a bucket
US9840922B2 (en) 2014-03-07 2017-12-12 United Technologies Corporation Fan blade spacer
DE102015220883A1 (en) * 2015-10-26 2017-04-27 Siemens Aktiengesellschaft Dummy wheel disc and method of working blades
US10982557B2 (en) * 2018-11-15 2021-04-20 General Electric Company Turbine blade with radial support, shim and related turbine rotor
US10815799B2 (en) * 2018-11-15 2020-10-27 General Electric Company Turbine blade with radial support, shim and related turbine rotor
US10975714B2 (en) 2018-11-22 2021-04-13 Pratt & Whitney Canada Corp. Rotor assembly with blade sealing tab
US12312981B2 (en) 2021-04-02 2025-05-27 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
CN113339290B (en) * 2021-06-09 2025-04-15 镇江市丹徒区粮机厂有限公司 A high-efficiency and energy-saving fan for medium-flow, medium-high pressure material transportation
CN113606187B (en) * 2021-09-13 2023-05-16 安徽环茨智能科技有限公司 Grain type blade of ternary impeller of high-speed centrifugal fan
US12018590B1 (en) 2023-04-04 2024-06-25 Ge Infrastructure Technology Llc Method for turbine blade and assembly with dovetail arrangement for enlarged rotor groove
US12110809B1 (en) * 2023-04-04 2024-10-08 Ge Infrastructure Technology Llc Turbine blade and assembly with dovetail arrangement for enlarged rotor groove

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US952317A (en) * 1909-12-10 1910-03-15 Wilhelm Heinrich Eyermann Means for securing turbine-blades.
US1619133A (en) * 1922-01-07 1927-03-01 Westinghouse Electric & Mfg Co Blade fastening
US2656146A (en) * 1948-04-08 1953-10-20 Curtiss Wright Corp Turbine blade construction
US2753149A (en) * 1951-03-30 1956-07-03 United Aircraft Corp Blade lock
US3395891A (en) * 1967-09-21 1968-08-06 Gen Electric Lock for turbomachinery blades

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139295A (en) * 1983-05-05 1984-11-07 Tuomo Kaivola Thermal joint e.g. for a turbine
CN110397625A (en) * 2019-08-15 2019-11-01 上海电气燃气轮机有限公司 A New Blade Locking Device

Also Published As

Publication number Publication date
FR2029000A1 (en) 1970-10-16
DE2002465A1 (en) 1970-07-30
US3572970A (en) 1971-03-30
JPS4836201B1 (en) 1973-11-02
BE744592A (en) 1970-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees